近30年巢湖流域土地利用变化及其驱动力研究

Land Use Change and Its Driver Factor in Chaohu Lake Basin

土地利用与覆被变化(LUCC)是全球变化的重要内容和主要表现之一,LUCC研究已成为全球变化研究的前沿和热点问题。基于多时相的TM影像数据,从流域尺度研究了巢湖流域的土地利用变化,分析探讨了土地利用变化的社会经济驱动力。研究结果表明,1979～2008年间巢湖流域的土地利用发生了比较明显的变化,主要表现在耕地锐减和建设用地激增;经济发展、城镇化、工业化、人口增加是造成巢湖流域土地利用变化的主要驱动力。

Land use and land cover change （LUCC）is one of the main reasons of global change, LUCC research has become the front in global change and hot question at present. Based on TM data, the structure change of land use and its driver factors in Chaohu Lake basin during the past 30 years are studied. The result shows that there has been a significant change of land use in Chaohu Lake basin, i.e. , cropland reducing and build-up land increasing; Also, the economic high-speed growth, urbanize, industrialization, increasing population is the four main driving forces to bring land use change in Chaohu Lake basin.